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Hi, I have a Sony STR-DE515 that I am working on. I found out that the transistors MP1620 and MN2488 were causing my protection mode. I replaced those transistors and still have protection mode. Do I need to replace the 180 ohm resistors and the .22 ohm resistor block? What about the little...

I found out what my problem was. I was looking on the web for a schematic and ran across another post about someone having the same problem. It turns out that their problem was related to 3 pairs of transistors underneath the bottom cover, labeled MN2488 & MP1620. I found the 2 bad ones by...

Where are the power supply filters located? I am assuming near the power supply. This receiver used to be my aunt's. I am guessing that they must have crossed a wire or shorted something out during hooking the receiver up to short it out. The only panel that I see that will come off is the one...

Hi, I am working on a Sony STR-DE515 Receiver. When I turn it on, it comes up as TV/DBS Protect. How do I fix it? While I was poking around on the inside of the receiver to find out what would be causing it, I turned the receiver over and noticed about 5 burnt components, but I am able to get...